Does it matter where I bank? Can you suggest a template for tracking stuff/everything?

[Jeb Brilliant]

Hi All,

When I get my first rent check I need to figure out where to put it. I currently bank with a credit union that will only allow me to have 1 checking and 1 savings account. I am able to have sub accounts like if I wanted to have a sub checking account for rent  and another for maintenance. My question is, do I keep this money at a medium size local credit union or open an account with a big or small bank? 

What do you do?

Also, is there a good template to keep track of everything money related for a property?  What about tax "stuff", maintenance and the like? 

Thanks in advance.